I have discovered, that the TIB_CustomGrid.GetGridCol-Function doesn't
work correctly, when you set some fields in the dataset visible to
false. Here is the current function:

function TIB_CustomGrid.GetGridCol( ACol: integer ): integer;
begin
Result := ACol + FixedCols - FixedDataCols;
end;

But when one or more fields before ACol are invisible, then you get an
incorrect result.


Guido